In iOS 5 Apple placed Weather and Stocks widget into a new section of Notification Center, but some of users do not want these to show there, so the steps written below will help you out to remove Stocks apps from Notification Center on iPhone, iPod Touch or iPad.
Remove Stocks Apps from iOS Notification Center
Tap on “Settings” from springboard of your iPhone/iPod Touch/iPad
Tap on “Notifications” > “Stocks Widget”
Toggle “Notification Center” ON/OFF slider to “OFF” state
Done, no more Stocks will appear in Notification Center
I think there’s an other advantage to remove stocks apps from Notification Center and that is to save space.